Minor mag. 1.6 earthquake - Explosion - Washington-Oregon Border Region on Monday, Oct 18, 2021 4:34 pm (GMT -7) -

Minor mag. 1.6 earthquake - Explosion - Washington-Oregon Border Region on Monday, Oct 18, 2021 4:34 pm (GMT -7)

Minor magnitude 1.6 earthquake at 1 km depth

19 Oct 00:15 UTC: First to report: USGS after 41 minutes.
Date & time: Oct 18, 2021 23:34:15 UTC -
Local time at epicenter: Monday, Oct 18, 2021 4:34 pm (GMT -7)
Magnitude: 1.6
Depth: 1.1 km
Epicenter latitude / longitude: 45.80267°N / 122.49°W (Oregon, United States)
Antipode: 45.803°S / 57.51°E
Nearest volcano: West Crater (33 km / 21 mi)
Nearby towns and cities:
3 km (2 mi) ESE of Lewisville (Washington) (pop: 1,720) --> See nearby quakes!
4 km (3 mi) NE of Battle Ground (Clark County, Washington) (pop: 19,400) --> See nearby quakes!
15 km (9 mi) NNE of Five Corners (Washington) (pop: 18,200) --> See nearby quakes!
16 km (10 mi) NE of Salmon Creek (Washington) (pop: 19,700) --> See nearby quakes!
16 km (10 mi) NNE of Orchards (Washington) (pop: 19,600) --> See nearby quakes!
20 km (12 mi) NE of Hazel Dell (Washington) (pop: 19,400) --> See nearby quakes!
23 km (14 mi) NE of Vancouver (Washington) (pop: 172,900) --> See nearby quakes!
25 km (16 mi) NNW of La Camas (Washington) (pop: 21,800) --> See nearby quakes!
34 km (21 mi) N of Gresham (pop: 110,600) --> See nearby quakes!
34 km (21 mi) NNE of Portland (pop: 632,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds 12.2°C (54 F), humidity: 72%, wind: 1 m/s (2 kts) from NE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 107 joules (4.4 kilowatt hours) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
1.61.1 kmExplosion - Washington-Oregon Border RegionUSGS

User reports for this quake (4)

At magnitude 1.6, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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3.4 km WSW of epicenter [Map] / not felt
97229 / not felt
97229 / not felt
Les Schwab Tire Center, 390 NE Burnside Rd., Gresh / Very weak shaking (MMI II) / single lateral shake / very short : I had just sat to wait upon a Tire Rotation & felt a fair, short, jolt.  
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